Li Xuan is a pivotal character in the Chinese animated film 'Da Yu Hai Tang' (Big Fish & Begonia). Known for his kind heart and bravery, he plays a crucial role in the story as the human counterpart to the protagonist, Chun. Xuan sacrifices himself to save Chun, ultimately becoming a fish in her world. His selflessness and deep bond with Chun drive the emotional core of the film, highlighting themes of love, sacrifice, and the interconnectedness of life. Xuan's journey profoundly impacts the course of the narrative, leaving a lasting impression on viewers.